Cleaning machine



F. BURTT CLEANING MACHI NE May 7, 1929.

Filed Dec. 31, 1927 ORNEYS INVENTOR Fran/r Barf! Patented May 7, 1929.

UNITED STATES.

FRANK BURTT, on KALAMAZOO, MICHIGAN.

i CLEANING MACHINE.

Application filed December 31, 1927. Seria1 No. 2 l3,850.

The main object of this invention is to provide an improved machine for cleaning erasers and the like which is of large capacity and highly eflicient.

A further object is to provide amachine of this character in which thedust is collected so that it may be easily removed from the machine.

Objects pertaining to details and economics of my invention will definitely appear from the description to follow. The invention is defined in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawing, in which:

Fig. 1 is a side elevation of myimproved cleaning machine with portions in vertical central section.

Fig. 2 is an elevation looking from the left of Fig. 1, a portion of the drum being broken away.

Referring to the drawing, the base I is'of suitable dimensions to support the machine, which is preferably portable. The drum designated generally by the numeral 2 is rotatably supported on the shaft 3 carried by the pedestals l. The drum comprises a peripheral wall 5 and side walls 6, the side walls having peripheral flanges 7 embracing the peripheral wall 5. The peripheral wall and the side walls are secured to the annular angle iron reinforcing members 8.

A plurality of baflie walls 9 are disposed in spaced relation transversely between the side walls and provide a plurality of inwardly opening buckets adapted when the machine is in operation to pick up the erascrs, allowing them to fall from an elevated position to jar the dust therefrom. These baffle walls 9 are preferably disposed at an angle to the radial plane of the drum, thereby providing buckets having acute angles at one end. The walls 9 are provided at their ends with attaching flanges 10 which are secured to the side walls of the drum.

In the acute angles of the buckets I arrange dust collectors 11 which are of scroll cross section and formed of sheet metal. The outer overlapping edge 12 is lapped upon and se cured to the inner side of the peripheral wall. of the drum. The inner edge 13 of these scroll-shaped collectors is spaced from the outer overlapping portion, thereby providing longitudinal inlet passages or mouths 14 extending transversely across the drum.

The drum is rotated in the direction of the arrow in Fig.1 sothat as the drum revolves the erasers are, as stated, picked up by the buckets and allowed to drop, thereby jarring the dust therefrom and the dust is carried into the buckets which, owing totheir shape, effectively retain the same. One of the side walls has clean-out openlugs therein registering with the collectors. the clean-out openings having closures 15. One of the side wallsis also provided with a door 16 for the introduction and removal of the articles to be cleaned.

The structure illustrated is driven from a motor 1'7, the driving belt 18 being passed around the periphery of the drum. A belt tightener 19 is provided for the belt.

My improved cleaning machine is very efficient and of large capacity, the dust being effectively collected as it is dislodged from the erasers so that it is not pounded or embedded in the eraser-s by the tumbling thereof within the drum. The structure is also comparatively economical and is very convenient to use.

Having I claim as new Patent is:

1. In. a structure of the class described, the combination of a rotatably mounted drum provided with a plurality of transversely disposed battle walls project-in inwardly from its peripheral wall, said ba'lie walls be ing disposed at an angle to the radial planes of the drum so that they are inclined in the direction of rotation of the drum, dust collectors of scroll cross section disposed in the acute angles formed by said bafiie walls with their outer overlapping edges against the and desire to secure by Letters peripheral wall, the overlapping portions of i the dust collectors being spaced providing longitudinal inlet passages for the collectors, one of the walls of the drum having cleanout openings therein alined with said collectors.

2. In a structure ofthe class described, the combination of a rotatably mounted drum. provided with a plurality of transversely disposed balllc walls projecting inwardly from its peripheral wall, and dust collectors of scroll cross section disposed in front of said baffle walls andpthe angles formed there-- by with. their outer overlapping edges against the peripheral wall, the overlapping portions of the collectors being spaced prothus described my invention whatviding longitudinal inlet passages for the y from the peripheral wall and coacting with the walls of the drum to provide a plurality of inwardlyopening buckets, and dust collectors arranged in the forwardly facing corners of said buckets transversely across the drum, said dustcollectors being of scroll cross section with the outer edge disposed upon the peripheral wall of the drum and the overlapping portions spaced providing inlet openings, one of the side walls of the drum having clean-out openings therein alined with said dust collectors and provided with closures.

. 4. In a structure of the class described, the combination of a rotatably mounted drum provided with a plurality of baflles, and dust collectors of scroll cross section arranged in front of said baflies with their outer overlapping edges against the peripheral wall of the drum, the overlapping portions of the collectors being spaced providing longitudinal inlet passages for the collector, one of the walls of the drum having clean-out openings therein alined with said collectors.

5. In a structure of the class described, the combination of a rotatably mounted drum provided with a plurality of transverse bafiles, and a dust collector disposed transversely across the drum in front of one of said bafilcs, said dust collector being of scroll cross section with the outer edge secured to the peripheral wall of the drum and the overlapping portions spaccd providing a longitudinal inlet opening.

In witness whereof I have hereunto set my hand.

FRANK BURTT. 

